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Relay transceiver, relay receiving short joint and underground testing device

A transceiver and signal transceiver technology, used in surveying, wellbore/well components, earth-moving drilling, etc., can solve the problems of inaccurate testing, inability to read downhole temperature and pressure information in real time, etc., to improve stability and performance. The effect of reliable performance

Active Publication Date: 2015-04-29
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the present invention discloses a relay transceiver, a relay receiving sub, and a downhole testing device, which avoids the problem of inaccurate testing caused by inability to read downhole temperature and pressure information in real time

Method used

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  • Relay transceiver, relay receiving short joint and underground testing device
  • Relay transceiver, relay receiving short joint and underground testing device
  • Relay transceiver, relay receiving short joint and underground testing device

Examples

Experimental program
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Effect test

Embodiment 1

[0030] In the first embodiment provided by the present invention, a relay transceiver is provided, such as figure 1 and Figure 6 As shown, it includes a housing 6 and an upper joint 3, a signal transceiver 4 and a lower joint 5 arranged in the housing 6, wherein:

[0031] The upper connector 3 and the lower connector 5 are respectively arranged at both ends of the relay transceiver, and the signal transceiver 4 is arranged between the upper connector 3 and the lower connector 5, and is electrically connected to the upper connector 3 and the lower connector 5 respectively;

[0032] The upper joint 3 is connected with the cable 30, and is used to receive the instruction sent by the data receiving processor through the cable 30, and transmit it to the signal transceiver 4. After being processed by the signal transceiver 4, the instruction is encoded, and the wireless electromagnetic wave is used as the carrier to transmit the instruction to the signal transceiver 4. The data ac...

Embodiment 2

[0046] In the second embodiment provided by the present invention, a relay receiving section is provided, such as Figure 4 As shown, it includes a centralizer 2 and the above-mentioned relay transceiver 1, and the centralizer 2 is connected with the relay transceiver 1.

[0047] In this embodiment, the centralizer 2 includes a relay transceiver connector 22 and a main body of the centralizer, and the relay transceiver connector 22 is connected to the centralizer plug 20 of the relay transceiver.

[0048] During the construction process, the cable 30 drags the relay receiving sub-joint, and when the relay receiving sub-joint is lowered in the pipe string, the function of the centralizer 2 is to keep the position of the relay receiving sub-joint 1 centered in the pipe string. When the wireless electromagnetic wave signal is in the receiving position, the centralizer 2 is in good contact with the inner wall of the matching insulating nipple fixing sleeve to ensure the stable per...

Embodiment 3

[0054] In the third embodiment provided by the present invention, a downhole testing device is provided, such as Figure 6 As shown, it includes data acquisition and wireless transceiver sub-sections, data receiving processor and the above-mentioned relay receiving sub-section, the data receiving processor is set on the ground, and sends instructions to the relay receiving sub-section installed underground through the cable 30 , the relay receiving sub-section sends instructions to the data acquisition and wireless transceiver sub-section through the low-frequency electromagnetic wave as the carrier, and the data acquisition and wireless transmission and reception sub-section collects formation pressure and temperature information according to the received instructions and the requirements of the instructions. And use the wireless electromagnetic wave as the carrier to send to the relay receiving short section, and the relay receiving short section decodes and re-encodes the wi...

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Abstract

The invention discloses a relay transceiver, which comprises a shell, an upper joint, a signal transceiver and a lower joint; the upper joint, the signal transceiver and the lower joint are arranged in the shell, wherein the upper joint and the lower joint are respectively arranged at both ends of the relay transceiver, the signal transceiver is arranged between the upper joint and the lower joint and electrically connected with the upper joint and the lower joint respectively; the upper joint is connected with a cable and used for receiving an order sent by a data receiving processor through the cable, sending the order to the signal transceiver, and receiving pressure and temperature information sent by the signal transceiver; and the lower joint is electrically connected with a data collecting and wireless transceiving short joint, and used for receiving pressure and temperature information collected by the data collecting and wireless transceiving short joint, sending the pressure and temperature information to the signal transceiver, receiving an order sent by the signal transceiver and sending the order to the data collecting and wireless transceiving short joint. By adopting the relay transceiver, the underground pressure and temperature information can be observed in real time, so that the problem that the underground temperature and pressure information cannot be read in real time to cause incorrect testing is avoided.

Description

technical field [0001] The invention relates to a downhole temperature and pressure testing device, in particular to a relay transceiver, a relay receiving sub-joint and a downhole testing device. Background technique [0002] In the traditional downhole testing technology, the downhole temperature and pressure are generally tested directly by placing the thermometer and pressure gauge downhole. After the test is over, the downhole thermometer and pressure gauge are taken out to read the downhole pressure and temperature directly. However, this method cannot read the downhole temperature and pressure information in real time. During the test, the operation of opening and closing the well is mainly based on experience, which inevitably relies on experience, resulting in a certain degree of blindness in the operation. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention discloses a relay transceiver, a relay recei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/13E21B47/01E21B47/06
Inventor 田志宾
Owner CHINA NAT OFFSHORE OIL CORP
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